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Search Results: 1 - 10 of 10513 matches for " Leila;Campos "
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Estratégias de referencia??o no discurso midiático: práticas ideológicas de inclus?o e exclus?o de dizeres no discurso sobre a guerra
Campos, Carla Leila Oliveira;
Linguagem em (Dis)curso , 2010, DOI: 10.1590/S1518-76322010000100003
Abstract: in this paper, we investigate the discursive role of referenciation as a discursive activity of introduction of referents. we examine the lexicalization process in the introduction of the referent "iraq war" in the brazilian magazine veja, working with theories that investigate the role of media in the production and dissemination of symbolic practices. these practices are essential for the construction of our view of the world, especially in the field of international relations. through the articulation of these studies and the critical discourse analysis developed by van dijk, we try to understand the discursive role of referenciation in the symbolic practices of the media. we conclude that referenciation is an important object of analysis that reveals the ideological positions of socio-culturally situated subjects and as such is a central element in the construction of our views of social events.
Colicinogeny in Salmonella serovars isolated in Brazil
Campos, Leila Carvalho;Hofer, Ernesto;
Memórias do Instituto Oswaldo Cruz , 1988, DOI: 10.1590/S0074-02761988000200007
Abstract: a study of colicinogeny was made in 748 strains of salmonella (97 serovars) isolated from different sources; human (291), animal (119), environmental (141), food (102) and animal feed (95). colicin production was detected in 64 strains (8.6%), particularly isolated from foods (30.4%). col. e1 (53) and ia (44) were the most frequently observed, especially in s. agona for environment and food sources. col v production was identified in 5 strains of s. typhimurium within 8 producer cultures isolated from humans. its relationship with the sources and serovars of salmonella are discussed.
Valor do esfrega?o no diagnóstico per-operatório dos tumores provenientes de neurocirurgias
Chimelli, Leila;Campos, Ivelise de Souza;
Arquivos de Neuro-Psiquiatria , 1993, DOI: 10.1590/S0004-282X1993000200007
Abstract: the smear technique has been used for rapid diagnosis of tumors removed in neurosurgeries in many neuropathological centers. in order to> assess the diagnostic accuracy of this technique, we examined 137 smears and made a cytohistological correlation. our cases include 12 astrocytomas, 4 anaplastic astrocytomas, 26 glioblastomas, 7 oligodendrogliomas, 5 medulloblastomas, 8 schwannomas, 17 meningiomas, 13 pituitary adenomas, 20 metastatic tumors and 18 assorted tumors and non neoplastic lesions. the correct diagnosis was made in 91.2% of the cases which coincides to the literature. the knowledge of the localization and the characteristic morphologic features of some tumors were important for the diagnosis. the ability to recognize normal nervous tissue in smears was important even to help the surgeon to reach the tumor. we believe that the use of smears should be encouraged in our country in view of the simplicity of its preparation and accuracy of results.
Aspecto citológico de tumores intracranianos e do canal vertebral
Campos, Ivelise de Souza;Chimelli, Leila;
Arquivos de Neuro-Psiquiatria , 1993, DOI: 10.1590/S0004-282X1993000200008
Abstract: we present the cytologic aspects of 137 tumors operated by neurosurgeons, including 12 astrocytomas, 4 anaplastic astrocytomas, 26 glioblastomas, 7 oligodendrogliomas, 5 meduloblastomas, 8 schwannomas, 17 meningiomas, 13 pituitary adenomas, 20 metastatic tumors and 18 assorted tumors and nonneoplastic lesions. we have also analysed cytologically samples of normal nervous tissue obtained from autopsies, aiming at its recognition and distinction from the neoplastic tissue in biopsies. the tumors were analysed in smears which were subsequently compared with the histological sections. although it is important to observe cytological details in the tumor, occasionally cells are arranged in such a way, that an overview of the smear pratically allows the diagnosis of the tumor.
Diarrheagenic Escherichia coli categories among the traditional enteropathogenic E. coli O serogroups: a review
Campos, Leila C;Franzolin, Marcia R;Trabulsi, Luiz R;
Memórias do Instituto Oswaldo Cruz , 2004, DOI: 10.1590/S0074-02762004000600001
Abstract: the socalled enteropathogenic escherichia coli (epec) o serogroups include typical and atypical epec, enterohaemorrragic e. coli, enterotoxigenic e. coli, and enteroaggregative e. coli. the aim of this article is to review the composition of each o serogroup and the major serotypes, clones, and additional virulence characteristics of each of these diarrheageniccategories. their adherence patterns and genetic relationships are also presented. the review is based on the study of 805 strains of serogroups o26, o55, o86, o111, o114, o119, o125, o126, o1127, o128, and o142 most of which isolated in s?o paulo from children with diarrhea between 1970 and 1990. since some o serogroups include more than one diarrheageniccategory o serogrouping only should be abandoned as a diagnostic method. however serotyping is a reliable method for those serotypes that correspond to clones.
Conversion of ethanol to acetone & other produces using nano-sensor SnO2(110): Ab initio DFT  [PDF]
Leila Mahdavian
Natural Science (NS) , 2011, DOI: 10.4236/ns.2011.36065
Abstract: The material considered in this study, SnO2 (110), has a widespread use as gas sensor and oxygen vacancies are known to act as active catalytic sites for the adsorption of small mo-lecules. In the following calculations crystal line SnO2 nano-crystal have been considered. The grains lattice, which has the rutile structure of the bulk material, includes oxygen vacancies and depositing a gaseous molecule, either ethanol, above an atom on the grain surface, generates the adsorbed system. The conduc-tance has a functional relationship with the structure and the distance molecule of the na-no- crystal and its dependence on these quanti-ties parallels the one of the binding energy. The calculations have quantum mechanical detail and are based on a semi-empirical (MNDO me-thod), which is applied to the evaluation of both the electronic structure and of the conductance. We study the structural, total energy, thermo-dynamic and conductive properties of absorp-tion C2H5OH on nano-crystal, which convert to acetaldehyde and acetone.
The genus Trichorhina Budde-Lund in Brazil, with description of seven new species (Isopoda, Oniscidea, Platyarthridae)
Souza, Leila A.;Araújo, Joafrancio P. de;Campos-Filho, Ivanklin S.;
Iheringia. Série Zoologia , 2011, DOI: 10.1590/S0073-47212011000200012
Abstract: seven new species of trichorhina budde-lund, 1908 are described, six from southeastern brazil, t. biumbonata sp. nov., t. lenkoi sp. nov., t. myrmecophila sp. nov., t. orensis sp. nov., t. sexdens sp. nov., t. tropidocerata sp. nov., and one from central brazil, t. crassisetae sp. nov. an emended diagnosis for the genus and a key to the 19 species recorded from brazil are provided. trichorhina acuta araújo & buckup, 1994 is recorded to state of mato grosso do sul.
Diferen?as sexuais na assimetria funcional hemisférica avalia??o taquistoscópica verbal utilizando microcomputador: evaluation using: microcomputer verbal tachistos-copic test.
Muszkat, Mauro;Frayman, Leila;Vincenzo, Neyde S. de;Campos, Carlos José Reis de;
Arquivos de Neuro-Psiquiatria , 1991, DOI: 10.1590/S0004-282X1991000200004
Abstract: study of sexual differences for the hemispheric prevalence on visual verbal stimuli using a microcomputer-based tachistoscope technic. seventeen right-handed individuals, 10 males and 7 females (mean age 32 years old), without neurological or visual abnormalities were studied. the subjects performed a verbal trigram tachistoscope test, using a ibm pc microcomputer compatible. the trigram consists of 80 consonant-vowel-consonant pairs of stimuli presented randomly to right and left visual fields. the evaluation was made through two conditions: t1 and t2. in t1 experiment stimuli exposition time was 260 ms, and in t2 experiment the stimuli exposition time was 160 ms. in tl experiment 80% of females showed a right hemispherical preference while 100% of males showed a left hemispherical preference. in t2 experiment, both sexes showed left hemispheric preference. a close relationship between sexual difference and hemispheric preference was found. we point out the importance of stimuli exposition time in determination of sexual differences in lateral hemispherical asymmetry.
Obten??o da veia safena magna através de acesso minimamente invasivo para revasculariza??es miocárdicas
TYSZKA, André Luiz;FUCUDA, Leila Satomi;TORMENA, Eloisa de Brida;CAMPOS, Antonio Carlos L.;
Revista Brasileira de Cirurgia Cardiovascular , 2001, DOI: 10.1590/S0102-76382001000200003
Abstract: objective: the aim of this study was to evaluate the possibility of excision of the greater saphenous vein through the minimal invasive technique, assessing its morphologic quality and the early complications in the leg wound. material and methods: from july to november/1999, 46 patients received aortocoronary saphenous vein bypass graft. a miniincision was made, the vein was identified and gently dissected out with a special retractor, with a long and narrow blade. the samples of the vein were sent to histological analysis. taking into accounts the presence or absence of the risk factors (female sex, anemia, obesity, peripheral vascular disease and diabetes mellitus) the patients were divided into two groups. the wounds were inspected, looking for majors and minor wound complications. results: the average number of incisions was 2.3, the average length was 3.5 cm, and the average of all incision length was 7.3 cm. the average length of vein harvested was 34.1 cm. the mean duration of the procedure was 28.7 minutes. minor leg wound complications occurred in 5 (10.8%) patients and the most common problem was local hematoma (6.5%). there were no major complications. the macroscopically evaluation showed two tears but the correction was possible. histological study showed that vascular integrity was maintained and there was no significant endothelial damage. conclusions: it was possible to harvesting satisfactory length of the vein through minimally invasive technique. this technique does not compromise the morphological quality of the vein graft. a low incidence of leg wound complications was observed, independently of the risk factors. these initial results suggest that this technique can be satisfactorily used for harvesting the greater saphenous vein. however, the long-term results still remain to be determined.
Obten o da veia safena magna através de acesso minimamente invasivo para revasculariza es miocárdicas
TYSZKA André Luiz,FUCUDA Leila Satomi,TORMENA Eloisa de Brida,CAMPOS Antonio Carlos L.
Revista Brasileira de Cirurgia Cardiovascular , 2001,
Abstract: Objetivo: Avaliar a possibilidade de obten o da veia safena magna através de miniincis es de pele, a sua qualidade e a ocorrência de complica es precoces da ferida operatória. Casuística e Métodos: Foram estudados 46 pacientes, admitidos entre julho e novembro de 1999. Após miniincis es longitudinais de pele a veia safena magna foi identificada e, com auxílio de afastador de lamina longa e estreita, delicadamente dissecada. Os pacientes foram divididos em 2 grupos na dependência da presen a dos fatores de risco: anemia, aterosclerose periférica, obesidade e diabete melito. As feridas operatórias foram observadas quanto às complica es maiores e menores. Amostras da veia foram enviadas para estudo histológico. Resultados: O número médio de incis es foi 2,3, com tamanho médio de 3,5 cm e de todas incis es somadas de 7,3 cm. O tamanho médio da veia foi 34,1 cm, com tempo médio de retirada de 28,7 minutos. Foram observadas complica es menores em 5 (10,8%) pacientes; sendo hematoma local a mais comum (6,5%). N o foram observadas complica es maiores e a ressec o foi sempre possível. Em 2 casos houve les o macroscópica da veia, sendo possível a sua corre o e utiliza o. O estudo histológico demonstrou preserva o da arquitetura tecidual e n o evidenciou les o endotelial significativa. Conclus es: A obten o da veia safena magna através de miniincis es é possível e resulta em adequado enxerto venoso. A incidência de complica es da ferida é baixa e independente dos fatores de risco. Estes resultados preliminares sugerem que a técnica pode ser aplicada com seguran a em pacientes submetidos à revasculariza o miocárdica, embora os resultados a longo prazo ainda necessitem ser determinados.
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